Gibberellic Acid Application and Plant Spacing Effects on Growth and Yield of Lettuce (Lactuca sativa L.)

Main Article Content

Taslima Akter
Md. Nazrul Islam
Md. Jahedur Rahman
Rebaka Sultana
Chaity Dey Puja
Farzana Islam
Md. Rezwan Sarker
Md. Mofizur Rahman

Abstract

Aims: This study aimed to optimize the levels of gibberellic acid (GA3) and plant spacing on growth and yield of lettuce.

Study Design: The experiment was laid out in Randomized Complete Block Design with three replications.

Place and Duration of Study: Horticulture farm of Sher-e-Bangla Agricultural University, Dhaka-1207, from November 2013 to January 2014.

Methodology: The experiment consisted of two factors. Factor A- two levels of gibberellic acid (GA3,) application, viz. G1= 25 ppm and G2= 50 ppm in relation to a control G0 and factor B- four plant spacing viz. S1=15cm x 15cm, S2=20 cm x 20 cm, S3=25 cm x 25 cm and S4=30 cm x 30 cm. GA3 was applied twice as a foliar application by hand sprayer at 20 and 30 days after sowing. First, second and final harvesting was done at 25, 35 and 45 days after sowing respectively.

Results: The growth and yield characters of lettuce showed significant variation for different levels of GA3 and plant spacing. Among GA3 levels, 25 ppm GA3 produced the maximum number of leaves (15.6), leaf area (283.9 cm2), fresh weight (91.6 g plant-1), dry weight (11.8 g plant-1), fresh yield (1794 g plot-1) and gross yield (12 t ha-1) at final harvesting compared to control where GA3 was not used. Under plant spacing, highest plant height (17.5 cm), leaf area (281.1 cm2), fresh weight (99.1 g plant-1) and dry weight (12.1 g plant-1) was revealed from wider spacing 30 cm x 30 cm followed by optimum spacing 25cm x 25cm. Meanwhile, closure spacing 15 cm x 15 cm showed maximum fresh yield (1710 g plant-1) and gross yield (15.5 t ha-1) due to higher plant density at final harvesting. Besides, lower chlorophyll content (0.43%) and the highest number of leaves (16.2) was found from 25 cm x 25 cm at final harvesting. So, optimum spacing 25 cm x 25 cm would be more suitable considering different points of view. Moreover, the treatment combinations 25 ppm GA3 with 25 cm x 25 cm exhibited highest benefit-cost ratio (2.04) than other treatments.

Conclusions: It is concluded that the combinations 25 ppm GA3 application with 25cm x 25cm spacing would be optimum for better growth and yield of lettuce

Keywords:
Lettuce, GA3, plant spacing, plant density, leafy vegetable, fresh weight, benefit-cost ratio

Article Details

How to Cite
Akter, T., Islam, M. N., Rahman, M. J., Sultana, R., Dey Puja, C., Islam, F., Sarker, M. R., & Rahman, M. M. (2020). Gibberellic Acid Application and Plant Spacing Effects on Growth and Yield of Lettuce (Lactuca sativa L.). Asian Plant Research Journal, 6(2), 1-13. https://doi.org/10.9734/aprj/2020/v6i230122
Section
Original Research Article

References

Chakraborty I, Chattopadhyay A. Pre and post-harvest losses in vegetables. In advances in postharvest technologies of vegetable crops; Singh B, Singh S, Koley TK. Eds.; CRC Press Taylor & Francis: Boca Raton, FL, USA; 2018.

Vendruscolo EP, Alcantara Rodrigues AH, Correia SR, Oliveira PR, Cardoso Campos LF, Seleguini A. Economic analysis of crisp lettuce production in different planting spacing and soil cover. Adv. Hort. Sci. 2019;33(4):449-455.

Mou B. United States, Department of Agriculture, Agricultural Research Service; 2007.

Available:[email protected]

Hoza G, Badulescu L, Stan A, Dinu M, Becherescu A, Zugravu M, Frincu M, Petre A. Effect of fertilization and storage conditions on the quality of lettuce. Agro Life Scientific Journal. 2020;9(1):2285-5718.

Yang X, Wei S, Liu B, Gou D, Zheng B, Feng L, Liu Y, Francisco A, Barberan T, Luo L, Huang D. A novel integrated non-targeted metabolomic analysis reveals significant metabolite variations between different lettuce (Lactuca sativa. L) varieties. Horticulture Research. 2018; 5:33.

Aliyu AM, Garko MS, Manga AA. The response of vegetable amaranth (Amaranthus cruentus L.) to gibberellic acid concentrations in Sudan Savannah zone of Nigeria. Journal of Humanities and Social Science. 2018;23(8):49-53.

Miceli A, Vetrano F, Sabatino L, D’ Anna F, Moncada A. Influence of preharvest gibberellic acid treatments on postharvest quality of minimally processed leaf lettuce and rocket. Horticulturae. 2019;5:63.

DOI: 10.3390/horticulturae5030063

Faten S, Shaheem AM, Fatima AR. Effects of foliar application of gibberellic acid and soil dressing of NPK at different levels on plant production of potatoes (Solanum tuberosum L.). Research of Journal of Agric and Bio. Sci. 2008;4(5): 384-391.

Singh SK, Kumar A, Beer K, Singh VP, Patel SK. Effect of naphthalene acetic acid (NAA) and gibberellic acid (GA3) on growth and fruit quality of tomato (Lycopersicon esculentum Mill.). Int. J. Curr. Microbiol. App. Sci. 2018;7(3):306-311.

Baliah NT, Sheeba PC, Mallika S. Encouraging effect of gibberellic acid on the growth and biochemical characters of green gram (Vigna radiata L.). Journal of Global Biosciences. 2018;7(8):5522-5529.

Hailay G, Haymanot A. The response of swiss chard (Beta vulgaris L.) to nitrogen levels and intra-row spacing in Debre Berhan Central Ethiopia. Journal of Horticulture and Postharvest Research. 2019;2(2):105-116.

Taiz L, Zeiger E, Moller IM, Murphy A. Plant physiology and development. Sixth ed. Sinauer: Associates, Sunderland, USA; 2017.

Khan A, Jan UI, Ali M, Jahangir MM, Karim W, Khan AA, Ullah M, Rafique ZM. Effect of different plant spacing on the performance of radish in the agroclimatic conditions of Swabi. Pure and Applied Biology. 2016;5(4):1120-1125.

Maraey MAA, Abo El Hamd ASA, Mohamed AA, Helaly AA. Growing endive plants (Cichorium endivia L. var. crispum) under different planting dates and spacing in Egypt. Advances in Plants & Agriculture Research. 2016;5(2):0173.

BARI. Krishi Projukti Hatboi, Bangladesh Agricultural Research Institute, Joydevpur, Gazipur; 2013.

Gomez KH, Gomez AA. Statistical procedures for agricultural research, Inter science publication, Jhon wiley and Sono, New York; 1984.

Kazemi M. Effect of gibberellic acid and potassium nitrate spray on vegetative growth and reproductive characteristics of tomato. J. Biol. Environ. Sci. 2014;8(22): 1-9.

Li P, Mo F, Li D, Ma BL, Yan W, Xiong Y. Exploring agronomic strategies to improve oat productivity and control weeds: Leaf type, row spacing and planting density. Can. J. Plant Sci. 2018;98(5):1084­1093.

Ayyub CM, Manan A, Pervez MA, Ashraf MI, Afzal M, Ahmed S, Rehman S, Jahangir MM, Anwar N, Shaheen MR. Foliar feeding with gibberellic acid (GA3): A strategy for enhanced growth and yield of okra (Abelmoschus esculentus L.). African Journal of Agricultural Research. 2013; 8(25):3299-3302.

Hasan MR, Tahsin AKMM, Islam MN, Ali MA, Uddain J. Growth and yield of lettuce (Lactuca sativa L.) influenced as nitrogen fertilizer and plant Spacing. Journal of Agriculture and Veterinary Science. 2017; 10(6):62-71.

Patel MJ, Patel HC, Chavda JC. Effect of plant growth regulators and their application methods on growth and yield of onion (Allium cepa L.). Advance Research Journal of Crop Improvement. 2010; 1(2):85-87.

Yordanova M, Nikolov A. Influence of plant density and mulching on growth and yield of lettuce (Lactuca sativa var. Romana L.). International Journal of Environmental & Agriculture Research. 2017;3(10):10-14.

Tsiakaras G, Spyridon AP, Khah EM. Effect of GA3 and nitrogen on yield and marketability of lettuce (Lactuca sativa L.). AJCS. 2014;8(1):127-132.

Thakur G, Singh AK, Maurya KP, Patel P, Kumar U. Effect of plant spacing on growth, flowering, fruiting and yield of capsicum (Capsicum annum L) under natural ventilated polyhouse. Journal of Pharmacognosy and Phytochemistry. 2018;1:78-81.

Altaey DKA. The role of GA and organic matter to reduce the salinity effect on growth and leaves contents of elements and antioxidant in pepper. Plant Archives. 2018;18(1):479-488.

Moniruzzaman M. Effects of plant spacing and mulching on yield and profitability of lettuce (Lactuca sativa L.). J. Agric. Rural Dev. 2006;4:107-111.

Aliyu AM, Garko MS, Manga AA. Response of vegetable amaranth (Amaranthus cruentus L.) to gibberellic acid concentrations in Sudan Savannah zone of Nigeria. Journal of Humanities and Social Science. 2018;23(8): 49-53.

Maboko MM, Plooy CP. Evaluation of crisphead lettuce cultivars (Lactuca sativa L.) for winter production in a soilless production system. Afr. J. Plant Science. 2009;2:113-117.